Question

Three compounds containing potassium and oxygen are compared. Analysis shows that for each 1.00 g of O, the compounds have 1.22 g, 2.44 g, and 4.89 g of K, respectively. Show how these masses demonstrate the Law of Definite Proportions?

Answer 1

The law of proportion states that elements are combined in the ratio of whole numbers.

now,

1 g of 0 and the compounds are 1.22 g, 2.44 g, and 4.89 g of K

1 g of o = 1.22 g of K

and

1.22 x 2 = 2.44 g of K

1.22 x 4 = 4.89 g of K

or we can compare the ratio

2.44/1.22 = 2 and

4.89/2.44 = 2

hence,

the reading of K is in whole-number multiple of each other.